You are working as a technician at Domain.com. The Marketing department has several gigabytes of data that need to be backed up on a daily basis. Which of the following media would be BEST suited for this?

A.
DVD

B.
dual-layer DVD

C.
external hard drive

D.
Digital Linear Tape (DLT)

Explanation:
DVD and dual-layer DVD’s are single use (otherwise they would have been called DVD-RW). External hard drive and DLT tapes are multi use but the DLT tape would provide better fault tolerance compared to the cost of the equipment.